package com.woniuxy02;

import java.util.Scanner;

public class Test01 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        System.out.println("输入成绩");
        int score=scanner.nextInt();
        if(score<0 || score>100){
            System.out.println("分数无效，重新输入");
        }else if(score>=90){
            System.out.println("优秀");
        }else if(score>=80){
            System.out.println("良好");
        }else if(score>=70){
            System.out.println("中等");
        }else if(score>=60){
            System.out.println("及格");
        }else{
            System.out.println("不及格");
        }
    }
}
